Homebrew PCBs

Hot tub/spa supply stores should also have it around 30%. It's used as an oxidizer to clean organic waste from the water.

--- In Homebrew_PCBs@yahoogroups.com, "designer_craig" <cs6061@...> wrote:
>
> 
> Fyi,
> 
> Was thinking about growing some hydroponic tomatoes this year and took a
> trip over to a  local hydroponic supplier.  Hand't realized how big an
> industry this is these days.  But I am sure its not for tomatoes.  Well,
> there on the shelf nex to the Super Bud Juice and the Earth Gold Super
> Grow nutrients were quarts of  27% peroxide.  I didn't see the price and
> then forgot to ask.  Didn't have etching suplies in mind at the time.
> 
> Craig
> 
> 
> 
> 
> 
> [Non-text portions of this message have been removed]
>